A brain dysfunction assessment device (100) comprises: a body movement indicator (10) which presents a body movement to be performed to a subject with a body movement presentation device (2)； a body movement data acquisition unit (20) which acquires the subject's body movement data with a body movement detection sensor (3)； a body movement accuracy calculation unit (30) which calculates a positional accuracy and a time sequence accuracy of the subject's body movement from the acquired body movement data； and a cognitive dysfunction assessment unit (40) which assesses the level of cognitive dysfunction of the subject by comparing a value which indicates the accuracy of the subject's body movement that is obtained from the calculated positional accuracy and time sequence accuracy with statistical data which indicates the accuracy of body movement of healthy individuals.
